Cita APA (7a ed.)

O'Callaghan, J. F. (1989). The Cortes of Castile-León, 1188-1350. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

O'Callaghan, Joseph F. The Cortes of Castile-León, 1188-1350. Philadelphia: University of Pennsylvania Press, 1989.

Cita MLA (9a ed.)

O'Callaghan, Joseph F. The Cortes of Castile-León, 1188-1350. University of Pennsylvania Press, 1989.